| The Modulation of Operant Variation by the Probability, Magnitude, and Delay of Reinforcement. | |
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MedLine Citation:
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PMID: 21731111 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Recent studies have demonstrated that the expectation of reward delivery has an inverse relationship with operant behavioral variation (e.g., Stahlman, Roberts, & Blaisdell, 2010). Research thus far has largely focused on one aspect of reinforcement - the likelihood of food delivery. In two experiments with pigeons, we examined the effect of two other aspects of reinforcement: the magnitude of the reward and the temporal delay between the operant response and outcome delivery. In the first experiment, we found that a large reward magnitude resulted in reduced spatiotemporal variation in pigeons' pecking behavior. In the second experiment, we found that a 4-s delay between response-dependent trial termination and reward delivery increased variation in behavior. These results indicate that multiple dimensions of the reinforcer modulate operant response variation. |
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Authors:
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W David Stahlman; Aaron P Blaisdell |
Publication Detail:
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Type: JOURNAL ARTICLE |
Journal Detail:
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Title: Learning and motivation Volume: 42 ISSN: 0023-9690 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-7-6 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0247267 Medline TA: Learn Motiv Country: - |
Other Details:
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Languages: ENG Pagination: 221-236 Citation Subset: - |
Affiliation:
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Department of Psychology, University of California, Los Angeles. |
Export Citation:
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Descriptor/Qualifier:
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| Grant Support | |
ID/Acronym/Agency:
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R01 NS059076-07//NINDS NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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